Recent studies have provided conflicting evidence on the relationship between school desegregation and white enrollment stability. Among the most frequently cited correlates of white withdrawal is the level of black concentration. The present study re-examines the relationship between the percent of black enrollment and white enrollment change at both the district and the school levels. The analysis focuses on 77 districts and approximately 2,300 schools located in southern Standard Metropolitan Statistical Areas. Higher black enrollments are found to be associated with white withdrawal at both the district and the school levels. In both cases this relationship appears to be curvilinear with a threshold roughly at 30 percent black. Above that point, white enrollments decline exponentially with increases in the percent of black enrollment. The most important implication of this study is that, on the average, districts with enrollments less than approximately 30 percent black can be desegregated without drastic declines in white enrollment. (Author/GC)